differentiation is an epigenetic process which is installed by changes of transcriptional programs over successive cellular divisions. a number of studies have reported the effects of biochemical modifications of chromatin (dna and chromatin proteins) on the regulation of transcription. although, these studies are able to explain how transcription of a given gene is regulated (toward activation...

www.frontiersinecology.org © The Ecological Society of America E problems are intensifying and threatening biodiversity and sustainability worldwide. Scientific understanding is a necessary step toward addressing these problems, but natural science alone is insufficient for achieving desired outcomes that benefit humans and the environment. Human behavior strongly influences ecological and soci...

We report the synthesis and application of a novel Exfoliated graphite/Selenium-Zinc oxide (EG/Se-ZnO) nanocomposite for photodegradation of methylene blue dye and its antibacterial activity. The composite was characterized using XRD, FTIR, SEM and TEM. Applicability of EG/ Se-ZnO nanocomposite as photocatalyst was investigated by the photocatalytic degradation of methylene blue as a model for ...

we have recently become aware that the office of foreign assets control (ofac) of the us department of the treasury has imposed new sanctions against iran. regulation 560.538 provides that us persons should not handle publishing services for written publications (whether journals or books) if any of the authors of the manuscript are employed by the government of iran. the government of iran is ...

Several studies have suggested that olfactory ensheathing glia (EG) can form Schwann cell (SC)-like myelin. Because of possible misinterpretation attributable to contaminating SCs, the capacity of EG to produce myelin needs to be explored further. Therefore, we compared the abilities of adult EG, purified by immunopanning with p75 antibody, and adult SCs to produce myelin when cocultured with p...

background: male infertility is affected by several factors. lead is one of the heavy metals more bioavailable than usually modifies the sperm quality in humans. objective: the aim of this study was to establish the role of lead in semen quality in environmentally exposed men. materials and methods: semen and blood samples were obtained from two groups: the exposed group (eg=20) and the non-exp...

The dynamic interactions that are established between plant and microorganisms rely on complex mechanisms of recognition and defense. Primary metabolism has been traditionally implicated as a major target in several plant-pathogen interactions, but also critical changes in some pathways of secondary metabolism have been identified [1]. In the last decade, transcriptomics has largely contributed...

â  â  background eosinophilic gastroenteritis (eg) is a rare inflammatory disorder of the gastrointestinal (gi) tract. there have been several case series of patients with eg from the western world and east asia. however, there has not been a report of patients with eg from the middle east region. the aim of this study is to describe clinical characteristics and treatment response in a series o...

personality traits and emotion regulation processes play an important role in human health. the purpose of this study was to investigate the role of positive personality traits (psychological hardiness and interpersonal forgiveness) in emotion regulation of patients with irritable bowel syndrome.the research was a cross-sectional study. statistical population included all of ibs patients referr...